Fabric polishing is the dry-finishing step that combs the pile straight and heat-presses it into directional lustre. That lustre is a temporary set — it only becomes permanent once decatizing follows it. The WPF-TG is QL's fabric polishing machine for this step, running on the stock-dyed and piece-dyed dry-finishing routes, right after weft-straightening.
Where this machine sits in the line, and what comes before and after
The WPF-TG sits toward the end of the dry-finishing sequence for woollen fabric. By the time cloth reaches it, raising, shearing (or singeing), brushing and weft-straightening have already pulled the pile up — but the fibres are still lying in random directions. The polishing roller's combing teeth straighten each fibre to its root first, and the same heated roller finishes the pass while the fibre is still combed flat: one machine, two actions in one pass. From there the fabric moves into steam pre-shrinking and decatizing.
What it changes in the fabric, top or yarn: handle, dimensional stability, lustre, cleanliness
What changes is the lustre. After raising, a long-pile woollen fabric has fibres pointing every which way, so light scatters and the face looks dull. The WPF-TG combs those fibres straight and presses them while hot, so light reflects in one direction and the cloth reads as glossy. That gloss and flatness are a temporary set — steam or moisture will partly or fully undo it. An optional waxing unit adds a touch more lustre and hand on top of this; an optional antistatic unit cuts down the lint and dust static pulls onto synthetic-blend fabric. Dimensional stability sits outside what this step touches; ask QL if this matters for your fabric.
Why this machine is necessary: what happens without it, or with another method
Pressing without combing still flattens the cloth, but the fibres stay randomly oriented — the result is a pressed-flat surface, not the directional sheen polishing delivers. Skip decatizing afterwards and the lustre fades under later steam or wet processing, usually discovered only once the fabric has moved on. Centring design affects running cost too: a conventional single-roller system loads one side of the felt blanket unevenly, so it flares at the edge and wears faster, pushing up replacement frequency. The WPF-TG centres with two synchronised rollers instead, removing that failure mode by design.
Setting the parameters: temperature, tension, speed, time
Temperature: the polishing roller runs up to 250°C, with primary and secondary probes holding a closed loop across the full width so there are no local hot or cold spots to cause uneven gloss. Speed: 25 m/min. Contact zone: the fabric-to-roller contact area is process-adjustable. Working width comes in three options — 1,800 / 2,000 / 2,200 mm — chosen by the widest fabric actually being run, not simply "wider is better"; 2,200 mm exists for extra-wide industrial cloth such as billiard cloth, and a wider machine needs more floor space too. Tension and exact pressure figures are set by sample trial per fabric, and QL provides a process sheet on request; contact time follows from the line speed.
The questions customers ask most
- Same woollen cloth, but theirs gleams and mine looks dull with scattered reflection — why?
- What is a fabric polishing machine, and what principle does it use to give fabric its glazed sheen?
- Domestic fabric polishing machines have a small contact area and do not polish fabric through — is the WPF-TG actually stronger?
- The felt blanket on the fabric polishing machine keeps drifting, bulging, and needing frequent replacement — what should I do about it?
- How do I choose among the 1,800 / 2,000 / 2,200 mm working widths for a fabric polishing machine — is wider always better?
- Are fabric polishing, calendering and decatizing the same process — and can one replace another?
Which process routes it appears on
The WPF-TG currently serves woollen mills only, appearing on the stock-dyed and piece-dyed dry-finishing routes. For process parameters specific to your fabric, contact QL: WhatsApp +1 380 900 2442, or +86 189 2110 8080.